R ramo Well-Known Member Jul 11, 2013 #1 السلام عليكم ورحمة الله Duality and Perturbation Methods in Critical Point Theory (Cambridge Tracts in Mathematics) شكرا جزيلا
السلام عليكم ورحمة الله Duality and Perturbation Methods in Critical Point Theory (Cambridge Tracts in Mathematics) شكرا جزيلا